Metallic receptacle and closure therefor



June 13,` 1939. w. LocKHART METALLIC RECEPTACLE AND CLOSURE THEREFORFiled July 9, 1934 v INVENTOR.

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l m MMIII ,VII/IIIIII Patented June 13, 19391 UNITED STATES METALLICRECEPTACLE AND CLOSURE THEREFOR William ILockhart, Cleveland, Ohio,Vassignor to Cornell Securities Corporation, Cleveland,

Ohio, a corporation of Delaware Application July 9, 1934, SerialNo,734,286

7 Claims.

My invention is an improvement in metallic receptacles and closurestherefor, and relates more particularly to means for removably securingthe closure in place upon the open end of the receptacle in uid tightsealed relation thereto.

One of the objects of this invention is to provide means for quicklysecuring a cover on a metallic receptacle such as a barrel or drum ofthe full removable head type, wherein the means may be operated in astep by step movement to deliver varying pressures to the cover. This isparticularly desirable where the barrel manufacturer is required to shipthe drums with the covers applied under only a light pressure sufiicientto hold the cover in place for shipping empty and where the usersubsequently desires to apply the full closing or sealing pressure as inshipping the containers filled to its customers.

Another object is to construct a simple and positive means for carryingout the above object. A further object is to provide a rack and pinionoperated ring closing device wherein the pinion may be selectivelyoperated in reverse directions and intermittently to apply or releasecover sealing pressures to the cover and drum.

A still further object is to produce such means which operate within thecircumference of the drum and which is sturdy and durable in use v andwhich also is inexpensive to manufacture.

tion will become more apparent as the following description of an`embodiment thereof` progresses, reference being made to the accompany-Ving drawing, in which like reference characters are employed todesignate like ipartsv throughout the same.

In the drawing:-

Figure 1 is a top plan view of a device embodying my invention andshowsthe same applied in illustrates one form of means for contracting`and/or expanding the ring in accordance with my invention;

Figure 4 is a view similar to that shown in Figure 3 but shows the ringexpanded; l

Figure 5 isa. section taken on line v5- 5y 0I Fig- `ure 3; and,

Other objects and advantages of my inven-k Figure 6 is a section takenon line 6 6 of Figure 4.

I have illustrated in the accompanying drawing one embodiment of myinver. tion and have shown the same applied to a metallic shipping drumI, the upper open edge of which is rolled or otherwise formed into aperipheral bead 2. A cover 3, comprising a cupped member having a.peripheral upwardly and outwardly extending flange 4, is supported bythe bead and the packlo ing 5 `in such a manner that the cupped portionof the cover may be telescoped for a short distance within the open endof the container or receptacle, as illustrated inFigure 2. It will benoted that a portion of the flange 4 is slightly arcuate in crosssection to conform with the approximate curvature of the upper surfaceof the bead, and'that the outer Vedge of the ange terminates at a pointnear that dened by the greatest outside diameter of the b ad. Thepacking 5 may consist of an annulus \of any. suitable material such asrubber or cork. I nd cork to be very satisfactory in use.

In the production and use of open end containers of the present type itis` desirable that the cover be removably secured on the container insuch a manner that a fluid tight seal between the cover, the packing andthe bead may be made with ease, and with my invention such a sealbetween these parts is readily and effectively accomplished, as afurther description of the present embodiment shown in the drawingprogresses.

One simple means for removably securing the cover on the receptacle influid tight relation 35 therewith, may include a split, channeledlocking or clamping ring 6 which is substantially U- shaped incross-section and is capable of being expanded and contracted bysuitable `operating means. The upper and lower flanges or walls of thecross-sectionally U-shapedring which constitute the cover flange andbead engaging walls thereof, converge outwardly toward the archedportion of the ring as indicated more clearly in Figure 2.

'I'his embodiment of my invention discloses a type of ring which iscontracted to clamp the cover into fluid tight sealed relation with thedrum or container, and is expanded to remove the ring and the coverYfrom the drum, but it is to be understood that the invention disclosedherein may equally well be applied to a ring which is expanded to press'the cover into sealed relation with the open end of the drum. f

As illustrated, the contractibleV channeled lockeA ing ring issubstantially U-,shaped in cross sec-V tion and is split transversely,preferably at one point as indicated in Figure 1. Lugs or brackets I and9 extend inwardly from the ring ends defining the split and may beformed integrally with the ring ends or may be formed separately andwelded thereto.

Referring now more particularly to Figures 3 to 6 .of the drawing I willproceed to describe more in detail the construction and operation of theembodiment illustrated therein and in particular the ring contractingand/or expanding means. l.

The lug or bracket 8 carried by one end of the split ring is preferablyformed as indicated in Figure 6, that is, it is substantially U-shapedin cross-section providing an opening to permit the rack extension ofthe lug I to operate between the spaced walls 9 and III thereof. Thewalls 9 and I furthermore provide a suitable housing for the rack andthe driving pinion and also serve as a guide for the rack in preventingvertical disalignment or distortion of the ring ends during the closingor opening movement, and provide means for maintaining the rack andpinion "in proper meshing relation.

According to my invention I have provided a simple mechanism forexpanding and/or contracting the split ring which consists essentiallyof a rack, a pinion and a selective means for driving the pinion ineither direction of rotation. When it is desired to operate or drive thepinion in reverse directions, suitable means for disengagement of theoperating means with the pinionV is provided so that the pinion may bedriven selectively in either of reverse directions.

The rack Il is preferably formed integrally with the lug or bracket 1and constitutes an extension thereof although it may be formedseparately and secured thereto as by welding. 'I'he inner portion of therack is toothed as at I2 and these teeth are preferably arranged in anarcuate series as illustrated, the ends I9 and Il of the rack providingstops to limit the travel oi' the pinion or ratchet wheel I5 in oppositedirections.

'I'he pinion is freely rotatably mounted between the spaced walls 9 andI Il of the lug or bracket l by means of a shaft or pin I6 passingthrough the walls 9 and I0 and the pinion i5. It will be noted from thedrawing that the rack operates between the spaced walls 9 and I0 of thelug 8 and that its teeth are at all times in mesh with the teeth of thepinion.

A lever I1 is provided for rotating the pinion II in either directionand for this purpose is arranged to engage or disengage the pinion atthe will of the operator. The lever constitutes an arm I 'I shaped toconform substantially to the curvature of the ring when it is in theposition shown in Figures 1 and 3.

The lever is formed at one end with a projecl tion shaped to engage thepinion between any of the adjacent teeth thereof as shown at Il. Figure4, to form a driving connection therewith. A

fork like member I9 comprising a pair of plates and 2i, welded toopposite sides of the lever end, extends from this end of the lever `onopposite sides of the projection I8 and is mounted to sldably embraceopposite sides of the pinion I5. As indicated more particularly inFigures 3, 4 and 6 the lever and member operate as a unit and constitutea sort of clutch in engaging and disengaging the projection I l betweenadjacent teeth of the pinion I5. When these parts are in the positionshown iniFigure 3, that is, when the projection Il is disengaged fromthe pinion, the

lever I] is withdrawn but maintains a pivotal connection with the pin orshaft Il which now engages the base of a T-shaped bearing slot 22 as at23. In this position the lever is free to be operated in eitherdirection without driving the pinion Il. But when the lever is thrustforwardly as in Figure 4 to engage the clutch projection Il with thepinion, the pin Ii is removed from the base of the T slot and assumes, aposition' such as is indicated in this ngure. Thus when the lever isoperated in either direction the pinion will be rotated and acorresponding relative movement between the rack and pinion takes placewith the result that the ring is contracted or expanded according to thedirection of movement of the lever and the position of the pawl 29a. Forexample, when the latch 2l is released, as in Figure 3, the pawl is inengagement with the teeth of the ratchet wheel or pinion to permitrotation of the pinion in one direction only. When the pinion isrotatedin a clockwise direction, as in contracting the ring. the spring 25permits the pawl to ride over the successive teeth of the pinion butprevents movement of the pinion in a counter-clockwise direction. Incontracting the ring it may be necessary to throw the lever to the leftseveral successive times depending upon the length of the rack in orderto fully contract the ring. In such cases the pawl and pinion act as aratchetvdevice permitting free movement oi' the lever to the right.

Assumingv that the ring has been fully contracted to press the cover insealed relation to the container and that the ring will not readilyspring open when the pawl 23a is released, as in Figure 4, the rack andpinion connection may be utilized to expand the ring by engaging theprojection Il with the teeth of the pinion and swinging the lever to theright. This is clearly shown in Figure 4. In this connection the pawl23a ymay be held in retracted position by means of the -bodiment of theinvention illustrated in the drawins.

It is to be noted that the projection I 8 of the lever when inengagement between adjacent teeth of the pinion Il, affords suiiicientclearance with the side walls of the teeth to permit the pin I8 to cometo rest in one or the other recesses 29 and ll forming the T-shaped slot22, according to the direction of throw of the lever I1.

The herein described invention provides a simple direct power connectionbetween the ends of a split clamping or locking ring and affords easyand quick operation of the device in either direction. By means vof theratchet-like action of the pinion and lever a fully contracted orexpanded condition of the ring is readily attained while the lever maybe brought to rest against the inner rim of the cover as in Figure 1. Asuitable seal of inspection or the like may be applied as at lI. l

Various changes in the details of. constructi and arrangement of partsmay be made without end of s receptacle including a. split locking ringthe cover and a portion ofthe receptacle Y departing from the spirit ofmy invention or the scope vof the appended claims.

I claim: 1. Ina `clamping device for a metallic receptacle having a.bead around-` its open end anda `cover having a ilange iitting over thebead', a

split channeled clamping ring to press the bead and cover flangetogether when the ring` is contracted, and means for vcontracting thering including a rack carried by one end of saidrring, a pinion carriedby the otherv endthereof and meshing with said rack, anda levercarriedlby said ring other end and slidable into and out of drivingengagement with said pinion. Y

2. In a device for clamping acover on a re ceptacle, a split clamping'ring to press-the cover on the receptacle when the ring is contracted,and A means for contracting `the ring including a sta-4 tionary member'carried by one end of the split ring, a rotatable member carried bythering other end and having positive driving connection with saidstationary member, and a lever having sliding engagement with saidrotatable member for driving the same to contract or expand the ring.

^ 3. A device for clamping a cover on the `open end of areceptacle'including a split locking ring engaging the cover and aportion-'of the receptacle to press the same together when the ringiscontracted, and means for. contracting said ring in- -cluding a rackcarried by one end of the ring, a pinion engaging they rack androtatably carried by the other end of the ring, and a lever for rotatingsaid pinion, said'lever being slidable into and out of engagement withsaid pinion.

4. A device-for clamping Aa cover on the open end of a receptacleincluding a split locking ring engaging the cover and a portion of thereceptacle 'to press the same together'when the ring is contracted, andmeans` for contracting said ring including a rack carried by one endA ofthe ring, va pinion i engaging therack and rotatably carried by theother end of the ring, a leverfor rotating said pinion, said lever beingslidable into and out of engagement lwith said pinionand a latch topermit rotation of the pinion in one direction but preventing lrotationin a-reverse direction.

5. A device for clamping a cover on the-open to press the same togetherwhen the ring contracted, and means for contracting said ring includinga rackcarried by one end of the ring, a

pinion engaging the rack and rotatably carried by the other end of thering, a lever for rotating said pinion, said lever being slidable withrespect to the pinion and having a projection at or near an end Vthereoffor driving engagement .with said pinion, said lever also having anextended portion overlying the pinion, said portion having a slottherein toreceive the shaft on which said pinion is rotatable, and a'Ashaft for said pinion.`

6. A device for clamping a cover on the open end of a receptacleincluding a split locking ring engaging the cover and a portion of thereceptacle f to press the same together when the ring is contracted, andmeans for contracting said ring inlimited ,movement relative to andtransversely of said pinion when said lever is operated to expand or-contract the ring.

7. A device for clamping a cover on the open e'nd of a receptacleincluding a split locking ring engaging the cover and a portion of thereceptacle .to press the same together when the ring is contracted, andmeans for contracting said ring including a 'rack carried by one end ofthe ring,

a pinion engaging. the rack and rotatably carried by the otherend of thering, a lever for rotating said pinion, said lever being slidable intoand out of engagement with said pinion, and a pawl engageable with theteeth of the pinion to permit rotation of the pinionin one direction,but to preventrotation thereof in an opposite direction.

